[Aluminium in the lower respiratory tract of people living in México City].

Autor:	Manquián-Tejos AR; Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo, Instituto Politécnico Nacional, Mexico. amanquiante@yahoo.es, Tovar-Gálvez LR, Yáñez-Canal G
Jazyk:	Spanish; Castilian
Zdroj:	Revista de salud publica (Bogota, Colombia) [Rev Salud Publica (Bogota)] 2008 Jun-Jul; Vol. 10 (3), pp. 452-61.
DOI:	10.1590/s0124-00642008000300010
Abstrakt:	Objective: Investigating the presence of aluminium (Al) and respiratory pathologies in the lower respiratory tract of people who had lived in Mexico City for a minimum of two years. Methods: 250 respiratory tissue samples were obtained from pulmonary lobes, lymph nodes, bronchial and hilum regions during 36 individuals' autopsies. Inductively coupled plasma optical emission spectrometry (ICP-OES) was used for quantifying Al; the samples has been previously dried, ground and digested. Results: 13 different pathologies were identified but only three of them (pulmonary emphysema, bronchitis and anthracosis) were correlated with the presence of Al, an element being distributed in very variable concentrations (range: 2.7 to 836.1 micrograms of Al per gram of dry tissue (ì g Al/g ts)). The amount of Al found in lobes, bronchial and hilum regions was much smaller than that found in lymph nodes; such difference was statistically significant. Multivariate analysis by conglomerates revealed that the sample consisted of three classes of individuals, grouped according to the amount and distribution of Al in the lower respiratory tract, age, time spent living in Mexico City and the presence of pathologies. Conclusions: The Al found in the lower respiratory tract of residents of Mexico City would thus seem to have come from the air. The amount of Al and its distribution pattern depended on the time and place of residence and can lead to respiratory illness.
Databáze:	MEDLINE
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